多项选择题
A.PAT
B.802.1Q
C.Spanning-tree
D.VLANs
E.QoS
单项选择题 Youaredesigningasolutionthatneedstosupport30IPphoneusers.WhichswitchmodelandhowmanyswitchesdoestheCiscoSingle-SiteSecureNetworkFoundation1.1DesingandImplementationGuidesuggestforthesolution？（）
单项选择题 TherecommendedWANAccessmethodforasimplifiedandcosteffectiveCiscoSingle-siteSecureNetworkFoundationDeploymentprovideswhichtypeofService？（）
多项选择题 You work as a network technician at Certkiller .com. Please study the exhibit carefully. Which three of these are accurate description of values that you will find in the verified column for different types of products？（）
